Gas-mixer



C. A. PETERSON.

GAS MIXER.

APPLICATION FILED MAY|3.1920.

1,386,023. Patented Aug. 2, 1921.

I NVENTOR ATTORNEY mama UNITED STATES CARL A. PETERSON, 0F

SUPERIOR, WISCONSIN.

GAS-MIXER.

Application filed May 13,

T 0 all whom it may concern:

Be it known that I, CARL A. PETERSON, a subject of the King of Sweden,residing at Superior, in the county of Douglas and State of Wisconsin,have invented certain new and useful Improvements in Gas- Mixers, ofwhich the following is a specification, reference being had therein tothe accompanying drawing.

This invention relates to gas mixing devices and has special referenceto such mechanism used in connection with the gas supply of an internalcombustion engine which is received through a manifold or feed pipeleading from a carbureter.

The principal object of the invention is to produce a practical andeffective device for assisting in the more thorough mixing and agitatingof the gas as it passes through the feed pipe from the carbureter to theengine. Another object is that of simplicity of construction anddurability of the device. Still other objects and advantages of thepeculiar construction will appear in the further description of theinvention.

I am aware that many different forms of both rotative and fixed deviceshave been employed for this purpose, but believe that I have discovereda peculiarly shaped mixer and associate parts that will giveexceptionally good results; in fact the same has been thoroughly tested,proved to be practical and very satisfactory.

In the accompanying drawings forming part of this application and inwhich like reference characters indicate like parts:

Figure 1 is a top plan view of my complete mixer ready for installationintermediate of the two parts of the ordinary feed pipe adjacent thecarbureter of an internal combustion engine;

Fig. 2 is a central transverse section through the assembled parts of afeed pipe having my mixer installed therein and shown in side elevation;

Fig. 3 is an elevation of the mixer taken at right angles to Fig. 2;

Fig. 4 is an elevation of the rotatable plate or blade before beingshaped about its supporting sleeve; and

Fig. 5 is a perspective view of the sleeve or hollow shaft to which theblade is rigidly fixed when assembled.

1 represents a thin fiat washer or gasket which forms the main supportof the mixer and is installed intermediate of the simi Specification ofLetters Patent.

Patented Aug. 2, 1921.

1920. Serial No. 381,024.

larly shaped spaced portions of the two ends of the feed pipe, whenassembled, as lllustrated in Fig. 2 of the drawings. This gasket hasformed in the center thereof a circular hole 2 which is equal indiameter to the interior of the feed pipe and diametrically across whichand preferably integrally formed with the gasket is an upwardly archedsupport 3 which has fixed 1n the center thereof the pin or spindle 4 forrotatably supporting the mixer. The rotative portions of the mixercomprise preferably the elongated sleeve 5 which is slightly shorter inlength than the pin 4: and held thereupon against dislodgment by asuitable collar 6, there being provided ample play intermediate of theend of the sleeve and the collar to insure ready and free rotation ofthe mixer.

7 represents the mixing blade which is a single piece of sheet metal,the lower end being semi-circular in form as at 8, and the upper endsquare or straight as at 9. In construction there are three transversecuts 10, 11 and 12 made through the blade and spaced substantiallyequi-distant from the upper square end toward the lower round end. Theuppermost division 13 of the plate thus cut is bent outwardly to form asemi-circular hearing about the sleeve 5, while the intermediate portion14 is bent outwardly in the opposite direction to form a like bearing onthe opposite side of the sleeve, and the lower section 15 is bent toaline with the section 13, thus forming a circular opening centrally andlongitudinally of the blade for insertion of the sleeve.

There is a semi-elliptically shaped opening 16 within the plate beneaththe portion 15 which permits of the free ends of the semi-circularportion 8 of the blade, which is divided or bifurcated at 18, being bentin a curved form at right angles to the flat face of the opposite endand snugly fitted against the sleeve 5, the ends of the plate thusformed extending in radially opposite directions from the sleeve asshown clearly in Fig. 3 of the drawings.

lVhen the blade is thus assembled about the sleeve 5 it is securelysoldered, brazed or welded thereto to make a single unit which rotatesby the energy imparted to the curved ends of the blade by the upwardpassage of the gas in the pipe on its way to the cylinders of theengine.

The upper portion of the blade is straight and its edges parallel withthe sleeve so that when the plate is rotated by the action of the gas asheretofore stated, said upper portion will impart only centrifugalmotion to the gas, while the lower portion thereof receives motion fromthe gas and is actuated thereby.

It will be noted that the lower ends of the plate are not spirally.twisted, but are curved outwardly on an axis transverse the axis of thesleeve.

Suitable oil holes are indicated at 19, through which suffieientlubricant is received from the gas mixture, it being known that suchcontains slight quantities of oil.

Having thus described my invention what I claim and desire to secure byLetters Patent, is:

1. A gas mixer of the class described, comprising a support having aspindle securely fixed thereto, a combination propeller and fan-1ikeblade rotatably carried upon the spindle, a portion of said blade oneither side of the spindle being straight and parallel therewith, whilethe other portion is bifurcated and each half thereof curved outwardlyin radially opposite directions from the spindle.

2. A gas mixer of the ClflSSnClGSCIlbGd comprising a support having aspindle securely fixed thereto, a sleeve rotatably mounted upon thespindle, a rotative blade fixed to the sleeve, the approximate half ofwhich, adjacent the free end of the spindle, extends radially therefromin opposite directions, and, for a distance longitudinally thereof,parallel therewith, while the bifurcated pdrtions of the opposite halfare curved in opposite directions from the spindle, substantially asdescribed.

In testimony whereof I hereunto afiix my signature in the presence oftwo witnesses.

vCARL A. PETERSON.

